<ul class="nav nav-tabs">
    <li class="{{ $nav['active'] == 'main' ? 'active' : '' }}"><a href="{{ route('manage.ad.resource.index') }}">广告列表</a></li>
    <li class="{{ $nav['active'] == 'category' ? 'active' : '' }}"><a href="{{ route('manage.ad.category.resource.index') }}">广告位管理</a></li>
</ul>